From the Inside Flap
After the Fae and Humans nearly destroyed each other and their realms, the Queen of the Good Fae buried her thirteen daughters amidst the ruins, using their innate magic to create thirteen new hollows where Fae and Humans could rebuild.
Her valiant efforts were too little, too late. The violence and devastation contaminated the land, and dark energy leached into the earth, infecting the Queen's thirteen daughters' magic.
One hundred years later, the daughters rose from the earth. And with them came unimaginable darkness.
These are the stories of the Dark Fae hollows.